Eating too much sugar and fat is the main reason for your rapid weight gain. If you want to lose 10 Jin in a month, you need to quit all sweets and sweet drinks, all visible fat, and refuse to fry dishes with big oil.
This may lead to you not eating enough, so you must eat more vegetables with high plant fiber, which can increase your satiety.
In a word, within this month, you need to strictly control your diet and increase your body consumption. Being thin 10 kg is a sure goal. Finally, if you are a male, being thin 10 kg should have little effect on your overall health.
If you are a woman, losing 10 kg in a month may have some influence on your physiology. Of course, this is beyond the discussion of this issue, just hoping to attract your attention.